As I'm browsing around I have a current task that I'm working on but I can get easily get distracted. So I wander off and start looking at random messages and generally forget what I'm supposed to be doing. I always think it would be nice if on the top bar of the browser or status bar that I could add a current task which would be an editable text field which I could update with new information about what I'm currently doing. It could even be added to lightning in Thunderbird and edited from there as well.